Foamed concrete
US8808449B2 · kind B2 · utility
9Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Feb 16, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A foamed concrete having a density from 100 to 800 kg/m3 including by mass relative to the total mass of the concrete: a cement; water; from 0.01 to 5% of a water-reducing agent, plasticizer or superplasticizer; from 0.45 to 5% of a foaming agent relative to the amount of water; from 0.01 to 5% of a water-soluble calcium salt; inorganic particles from 0.1 to 300 μm in size; the ratio of foaming agent to calcium salt being from 0.3 to 0.8; the foamed concrete including 10% or more by mass of slag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.